Although the importance of periodical publications has been widely acknowledged in the social studies, Croatian periodicals have not been systematically studied. There is no complete historical overview or a retrospective bibliography. There are, however, several fragmentary studies, examples of which have been listed in this paper. The periodicals published during the existence of the Independent State of Croatia (1941-1945) have not been studied in detail. Hence, in this paper the periodicals of the Croatian Publishing and Bibliographic Institute (founded on August 9, 1941) are presented in an attempt to somewhat compensate for the existing gap. Presented are: Croatia, Književni tjednik (The Literary Weekly), Vienac (The Wreath), Časopis za hrvatsku poviest (The Journal of Croatian History), Časopis za medicinu i biologiju (The Journal of Medicine and Biology) – the intentions and achievements of the editorial boards, the contents and the authors. Croatia and Književni tjednik are presented in more detail as they are literary and history periodicals little known to the domestic public.